don't fall for the FF kit combo trap - unless you intend to sell the glass and get glass that takes advantage of high mpxls

I'm looking for FF body for the tele/macro primes that I already have. I'm usually not 'focal length limited', so this is an easy win: with FF I get a lot more (and higher quality) pixels out of the same lens, better ISO performance and better viewfinder.

I will probably keep my 450D + 15-85 for the less critical 'walkaround' zoom range. Maybe later on ditch all APS-C gear, switch to a quality compact camera for 'walkaround' and buy some high quality primes like 24/35/85 for the FF body (or an optically improved 17-40II for the SWA range, if it materialises). But at the moment my only choice with Canon is the 6D, which I'm not really enthusiastic about - so I'm not sure yet about investing in additional FF glass.